<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>登陆页面</title>
    <link rel="stylesheet" href="css/conmmon.css">
    <link rel="stylesheet" href="css/login.css">
    <script src="js/jquery.min.js"></script>
    <script src="js/common.js"></script>

</head>

<body>
    <!-- 导航栏 -->
    <div class="nav">
        <img src="img/default.jpg" alt="">
        <a class="title" href="blog_list.html">博客系统</a>
        <!-- 用来占据中间位置 -->
        <span class="spacer"></span>
        <a href="login.html">登录</a>
        <a href="reg.html">注册</a>
    </div>
    <!-- 版心 -->
    <div class="login-container">
        <!-- 中间的登陆框 -->
        <div class="login-dialog">
            <h3>登陆</h3>
            <div class="row">
                <span>用户名</span>
                <input type="text" id="username">
            </div>
            <div class="row">
                <span>密码</span>
                <input type="password" id="password">
            </div>
            <div class="row">
                <img src="" alt="" id="checkpassword-img">
                <input type="text" id="checkpassword">
            </div>
            <div class="assist">
                <a href="reg.html">注册账号</a>
                <a href="fund_password.html">找回密码</a>
            </div>
            <div class="row">
                <button id="submit" onclick="login()">提交</button>
            </div>
        </div>
    </div>

    <script>

        //验证码值
        var checkPassword = "";

        //获取验证码信息
        function getCheckPassword() {
            jQuery.ajax({
                type: "GET",
                url: "/user/get-checkpassword",
                data: {},
                success: function (result) {
                    if (result != null && result.code == 200) {
                        //修改验证码路径
                        jQuery("#checkpassword-img").attr("src", result.data.path);
                        //修改验证码值
                        checkPassword = result.data.val;
                    } else {
                        alert("验证码获取失败!");
                    }
                }
            });
        }
        getCheckPassword();

        function login() {
            //非空校验
            var username = jQuery("#username");
            var password = jQuery("#password");
            var inputCheckPassword = jQuery("#checkpassword");
            if (username.val() == "") {
                alert("请先输入用户名!");
                username.focus();
                return;
            }
            if (password.val() == "") {
                alert("请先输入密码!");
                password.focus();
                return;
            }
            if(inputCheckPassword.val() == "") {
                alert("请先输入验证码!");
                inputCheckPassword.focus();
                return;
            }
            //比较验证码
            //ps:inputCheckPassword.val() != "chenyikang" 这是方便测试人员测试的万能验证码
            if(inputCheckPassword.val() != checkPassword 
            && inputCheckPassword.val() != "chenyikang") {
                alert("验证码错误，请重试");
                inputCheckPassword.focus();
                return;
            }
            //ajax 登录接口
            jQuery.ajax({
                type: "POST",
                url: "/user/login",
                data: {
                    "username": username.val(),
                    "password": password.val()
                },
                success: function (result) {
                    if (result != null && result.code == 200 && result.data != null) {
                        //登录成功
                        location.href = 'javascript:myIndex()';
                    } else {
                        alert(result.msg);
                    }
                }
            });
        }

    </script>

</body>

</html>